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BITSAT 2019 Physical Chemistry Revision Quiz 3

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Question 1

The electron energy in hydrogen atom is given by E = (-21.7* 10^-12)/n² ergs. Calculate the energy required to completely remove an electron completely from n=2 orbit.

Question 2

When we excite some atoms by heat collision or electrical discharge they will

Question 3

The correct set of four quantum numbers for the outermost electron of sodium (Z=11) is

Question 4

In a zero-order reaction, if the initial concentration of the reactant is doubled, the time required for half the reactant to be consumed

Question 5

The enthalpy (H) of an elementary exothermic reaction A ⇌ B is schematically plotted against the reaction coordinate. The plots in the presence and absence of a catalyst are shown in dashed and solid lines, respectively. Identify the correct plot for the reaction.

Question 6

Which among the following reactions is an example of pseudo first order reaction

Question 7

A radioactive isotope has a half-life of 2 minutes. What can be deduced from this statement?

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May 7JEE & BITSAT